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arXiv · 2305.01864

Unsupervised Improvement of Audio-Text Cross-Modal Representations

Zhepei Wang·Cem Subakan·Krishna Subramani·Junkai Wu·Tiago Tavares·Fabio Ayres·Paris Smaragdis
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Abstract

Recent advances in using language models to obtain cross-modal audio-text representations have overcome the limitations of conventional training approaches that use predefined labels. This has allowed the community to make progress in tasks like zero-shot classification, which would otherwise not be possible. However, learning such representations requires a large amount of human-annotated audio-text pairs. In this paper, we study unsupervised approaches to improve the learning framework of such representations with unpaired text and audio. We explore domain-unspecific and domain-specific curation methods to create audio-text pairs that we use to further improve the model. We also show that when domain-specific curation is used in conjunction with a soft-labeled contrastive loss, we are able to obtain significant improvement in terms of zero-shot classification performance on downstream sound event classification or acoustic scene classification tasks.

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Zhepei Wang, Cem Subakan, Krishna Subramani, Junkai Wu, Tiago Tavares, Fabio Ayres, Paris Smaragdis. 2023-05-03. Unsupervised Improvement of Audio-Text Cross-Modal Representations. https://arxiv.org/abs/2305.01864

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